Spring-mattress



No. 6l3,843. Patented NuV.'8, I898.

- F. .1. MAIER.

sPnme mmness.

(Application filed Jan. 15, 1898.)

(No Model.)

WITNESSES: Gd

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FRANZ J. MAIEB, OF TRENTON, NE\V JERSEY.

SPRING-MATTRESS.

SPECIFICATION forming part of Letters Patent No. 613,843, dated November8, 1898.

Application filed January 15, 1898. Serial No. 666,746. (No model.)

fully set forth in the following specification and accompanyingdrawings.

My invention consists of a spring-mattress for a bed, &c., formed of ametal frame constructed of an outer rim and metal cross-slats whose endsare formed with tenons, which are passed through openings in said rimand firmly connected with the latter by means of heads on the outer endsof said tenons and shoulders at the base of said tenons, said shouldersand heads clamping the opposite ends of the tenons with said rim rigidlyas an integral connection, preventing motion of the tenons through theopenings in either direction and avoiding piercing of the tenons andweakening of the same.

It also consists in forming the aforesaid rim with channeled sides,whereby lightness, strength, and inexpensiveness are attained, and theheads of the tenons may be set into said rim, avoiding projection ofsaid heads beyond said rim.

Figure 1 represents a plan view of a springmattress embodying myinvention. Fig. 2 represents a vertical section of a portion thereof onan enlarged scale. Fig. 3 represents a horizontal section on line 00 m,Fig. 2. Fig. t represents a perspective view of a detached portion. Fig.5 represents a vertical section of a bedstead-post on which the mattressmay be supported. Fig. 6 represents a horizontal section on line y y,Fig. 5.

Similar letters of referenceindicate corresponding parts in the figures.

Referring to the drawings, A designates the frame of the mattress, thesame consisting of the metal rim B and the sets of metal crossslats Oand D, which are both fiat and some vertically arranged and othershorizontally arranged, said rim being channeled or flanged inhorizontaldirection,whereby great strength is obtained and a lighterframe produced. The ends of the slats are formed with tenons E, whichenter openings in the rim and are headed or riveted to the latter,whereby the slats are firmly connected with said rim, the crossing slatsbeing also reeved, whereby they are positively supported on each other,for which purpose,in the present case,the longitudinal slats C haveopenings F, through which the transverse slats D pass, as most clearlyshown in Fig. 4, thus bracing and strengthening the slats and enablingthem to endure the strain to which they may be subjected with outsagging to any material extent. As the tenons are riveted to the rimtheir ends do not project materially beyond the outer surface of saidrim, with which the heads of the rivets, as formed, are directly incontact. Then the walls of the channels of the rim inclose the heads ofthe tenons and cause said heads to be set back of said walls, wherebythey cannot cut or scratch surrounding objects. Furthermore, theopenings through which said tenons are passed are entirely closed,preventing the lodgment of vermin, the riveting of the tenons to the rimalso overcoming loose joints and preventing rattling of the parts.Furthermore, the rim is made of heavier material than the slats. Theopenings in the former do not materially weaken the same; but saidslats, ow= ing to their nature, are preserved intact without piercing orperforating the same. The tenons simply pass through the openings in therim and are headed on their outer ends, the heads overlapping the outerWalls of said openings, while the shoulders existing at the base of thetenons abut against the inner face of the rim and overlap the innerwalls of said openings, as most plainly shown in Fig. 3, thus firmlyconnecting the slats with the opposite sides of the rim without theemployment of independent rivets,which necessarily occasion piercing ofthe slats, which, being thin in their nature, break from said rivets,but which is avoided by my construction.

The slats D support the springs G, over which is the spring-bottom H.

The mattress may be made in sections or a single length, as desired, andprovided with lugs to enter sockets J onvthe bed-posts for supportingthe mattress.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A frame consisting of sets of vertically and horizontally arrangedslats, the members of one set passing through the members of the otherset, and a rim with openings therein, said slats having 011 the endsthereof, tenons, 5 shoulders and heads integral with the same, saidshoulders and heads rigidly clamping said tenons to the outer and innersides of said rim.

2. A frame for a spring-mattress consisting of a rim, and crossed slats,the latter being IO reeved together and having tenons which are rivetedto said rim, said rim being channeled in horizontal direction.

FRANZ J. MAIER.

lVitnesses:

J. S. WILsoN, Josnrrr RIETIIE.

